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Path: ...!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!eternal-september.org!.POSTED!not-for-mail From: Mikko <mikko.levanto@iki.fi> Newsgroups: comp.theory Subject: Re: Anyone with sufficient knowledge of C knows that DD specifies non-terminating behavior to HHH Date: Tue, 11 Feb 2025 11:27:58 +0200 Organization: - Lines: 64 Message-ID: <vof56u$1n9k0$1@dont-email.me> References: <vo6420$3mpmf$1@dont-email.me> <vo7be3$jug$1@dont-email.me> <vo7r8d$36ra$3@dont-email.me> <vo9ura$i5ha$1@dont-email.me> <voahc5$m3dj$8@dont-email.me> <vocdo9$14kc0$1@dont-email.me> <vocpl7$16c4e$4@dont-email.me> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Injection-Date: Tue, 11 Feb 2025 10:27:59 +0100 (CET) Injection-Info: dont-email.me; posting-host="7fc795a2521c8e1f099528e946c6413b"; logging-data="1812096"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX19YCMLTSnB/UOy3EpR0n47n" User-Agent: Unison/2.2 Cancel-Lock: sha1:LfiaPCO9FGwNEv/hKFJJ/vjrnbM= Bytes: 3353 On 2025-02-10 11:58:31 +0000, olcott said: > On 2/10/2025 2:35 AM, Mikko wrote: >> On 2025-02-09 15:24:53 +0000, olcott said: >> >>> On 2/9/2025 4:08 AM, Mikko wrote: >>>> On 2025-02-08 14:55:09 +0000, olcott said: >>>> >>>>> On 2/8/2025 4:25 AM, Mikko wrote: >>>>>> On 2025-02-07 23:13:04 +0000, olcott said: >>>>>> >>>>>>> Experts in the C programming language will know that DD >>>>>>> correctly simulated by HHH cannot possibly reach its own >>>>>>> "if" statement. >>>>>> >>>>>> Wrong, they understand that nothing below exludes the possibility that >>>>>> HHH is a program that can correctly simulate DD to its "if" statement. >>>>> >>>>> Show the execution trace of that. >>>> >>>> Your request does not make sense. Non-existence of a exclusion does not >>>> have an execution trace. >>>> >>>>>> The code of HHH might exlude that but that is not sohwn below. >>>>>> >>>>>>> The finite string DD specifies non-terminating recursive >>>>>>> simulation to simulating termination analyzer HHH. >>>>>> >>>>>> No, it does not. DD as quoted below pecifies nothing about the behaviour >>>>>> of HHH, only its argument types and return type. >>>>>> >>>>> >>>>> >> int Halt_Status = HHH(DD); // line 3 of DD >>>>> Requires HHH to simulate itself simulating DD recursively. >>>> >>>> No, it does not. I only requires that the execution of HHH with a function >>>> pointer to DD must be started. OP does not show what happens next. >>> >>> Within the context that HHH <is> a simulating termination >>> analyzer line 3 of DD proves that DD cannot possibly reach >>> its own "if" statement. >> >> That is not the context of OP. >> > > That you did not bother to look at my paper That is again a false claim about a person. > does not entail that the correct full context has not been provided. Of course not. However, the fact that no reference to that article before or when HHH was introduced to the discussion and the fact that the pointer to the article at the end of the discussion is not linked to any specific point do entail exacltly that. > The > context has always been this paper for several years. Irrelevant to OP. -- Mikko